Ten common reasons an application is invalid

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When you submit an application to us the first thing we do is check whether you have provided the information we will need to assess your application. We call this process validation.

If your application is missing any of the information we need, processing of your application will be delayed until it is received. To help you avoid the delays associated with an ‘invalid’ application, we have listed below the ten most common reasons why applications are classified as invalid.

Application submitted without a CIL (Community Infrastructure Levy) Additional Information form. The CIL Additional Information form must be submitted with all applications, including applications for a Lawful Development Certificate. The Planning Portal also provides accompanying guidance notes.

Application forms not signed and/or dated appropriately. Application forms include a declaration near the end that must be signed and dated.

The certificate of ownership within the application form is not signed and/or dated, or the incorrect certificate has been completed. All full and outline planning applications need an accompanying certificate of ownership. The application form guidance notes provide advice on the correct certificate to complete. Further advice can be found in the National Planning Practice Guidance.

No Design and Access Statement submitted when one is required. A Design and Access Statement must be submitted for major applications, listed building consent applications, applications in world heritage sites and conservation areas where the application is for one or more dwellings, or where the floor space created by the building or buildings is 100 square metres or more.